Strongly type UserControl using LoadControl?

I am trying use LoadControl to dynamically load a UserControl but it must be strongly typed. 
 I have scoured the web and found: 
1)      A number of comments on the need to use <% Register in the parent form.  However, these comments seem to pre-date VS 2008.  I fooled around with LoadControl a year or two back and remember that the <% Register allowed me to use ?Dim my ...